Gas producer



Jan. 19 1926.

1,570,314 s. A" MCI- SS 4 G AS rn'onucm Filed Feb. 27, 1923 2 Sheets-Shut. 1

[nu/enter,- Sanford :6! Moss,

Jan. 19;, 1926.

- 155711314 5. A. Moss GAS PRODUCER Filed Feb. 27 1925 2 Sheets-Shoot 2- Hi5 fittorney.

Patented Jan. 19, 1926.

sprronn a. MOSS,

'WUNITED STATES PATENT OFFICE.

OF LYNN, HASSACIIU'BETTS, ABSIGNOB TO GENERAL ELECTRIC COMPANY, A. COBIORATION OF NEW YORK.

GAB 2BODUCEB. I

Application filed February 27, 1928. Serial 1T0. 621,858.

To all whom it may concern:

Be it known that I, SANFORD A. Moss, a citizen of the United States, residing at Lynn, county of Essex, State of Massa' 'chusetts, have invented certain new and use-- ful Improvements in Gas Producers, of

which the following is a specification.

The present invention relates to gas producers of the type wherein the steam required for the gas producer process is used also as a pumping fiuid for supplying the air required,- the steam being utilized in a jet blower or ejector. In this process of gas manufacture, air and steam are required in certain definite proportions and considerable dilficulty has been experienced in obtaining thecorrect mixture and at the same time producing suificient pressure to force the air and the process as heretofore practiced, it had been necessary to use a comparatively thin bed of fuel in order that the steam and air would pass through it. It is, of course, do-

sirable to use a comparatively thick fuel bed but with the systems in use, time was not possible because when sufiicient steam was used to force the steam and air through a thicker fuel bed, the amountof steam used became entirely too great proportionatel to the air pumped. As a result, it has been necessary to use comparatively thin fuel beds 1n gas producers of this character Now, according to my invention, I provide an e ector or et blower having such proportions that with the thickest desired fuel bed, the quantity of steam required to produce the pressure necessary to force the steam and air through it will not be out of proportion to the quantity of air, and I then provide an auxiliarysteam pipe for supplying any deficiency in the steam to bring the quantity of steam u to the desired amount.

- designed to convert pressure into velocity:

. In the drawing, Fig. l is a vertical scctional View of a gas producer equipped with an ejector or jet blower embodying iv steam through the bed of fuel. In fact, in

my invention; Fig. 2 is a vertical sectional view of the the e ector, and Fig. 3 is a top plan view of the steam nozzles, the casing being shown in section.

Referring to the drawing, 5 indicates a gas producer having a chamber 6 which holds the fuel charge 7, and a gas discharge conduit 8. Associated with chamber 6 is an ejector type pump or jet blower halving a plurality of steam nozzles .9 carried by a frame 10 and supplied with steam by a conduit 11. The throats of nozzles 9 are indicated at 9". Surrounding steam nozzles 9 is a casing 12, the upper end of which forms a discharge tube, which is first converging and then diverging, the throat being indicated at 13. The discharge ends of steam nozzles 9 terminate in the converging portion or the discharge tube. The lower end of casing 12 is open as is indicated at 12 The general ar-.

for the admission of air. rangement illustrated and so far described is to be taken as typical of any suitable gas producer. The operation of such a gas producer is well understood. 7

According to my invention, I decrease the size of throat 13 to such an extent that its area A is less than one hundred times greater that the sum of all the areas in the throats 9" of steam nozzles 9. Representing the .sum of the areas of throats 9" by the letter a,

then the arrangement is such that is less than 100. Preferably, I utilize a value of equal to about 80. With th s arrange- 'in the ejector for carrying out the gas making process (this in contrast to excess steam of previously known apparatus) j and to take care of this condition, I provide an auxiliary steam pipe 14 for, su lying additional steam to t e apparatus. refer- In the use of my inably, pipe 14 ciple of operation of my supplies the steam adjacent the active end or t e discharge tube of the ejector.

By the use of my invention I am enabled in the blowing of as producers to use thicker beds of fuel t an heretofore and at the same time maintain always the correct proportions of air and steam.

In accordance with the provisions of the patent statutes, I have described the prininvcntion. together with the apparatus which I now consider to represent the best cu'iborlimcnt thereof, but I desire to have it understood. that the apparatus shown is only illustrative and that the invention may be carried out by other means.

What I claim as new and desire to secure by Letters Patent of the United Ethics, is:

1. In a gas producer in combination, a

fuel chamber, air and steam admissionmeans comprising a steam-actuated jet blower for blowing air and steam into the fuel charge, said et blower having a discharge tube and steam nozzle means, and

the producer independently of said jet.

blowa'.

3,, In a gas producer, in combination, a fuel 'phamber, air and steam admission means comprising a steam-actuated jet blower for blowing air and steam into the fuel charge, said jet blower having a discharge tube which is first converging and then diverging, and the area of the throat of the discharge tube bein not more than one hundred times greater than the total steam nozzle throat area.

4. In a gas roducer, in combination, a fuel chamber, air and steam admission means wmprising a steam-actuated jet blower for blowing air and steam into the fuel charge, said jct blower having a discharge tube and a plurality of steam nozzles, and the area of the throat of thedischarge tube being not more than one hundred times greater that the total steam nozzle throatarea.

A gas producer, in combination, a fuel chamber, air and steam admission means comprising a steamactuatcd jet blower for blowing air and steam into the fuel'charge, said jet blower havinga discharge tube having a convergent portion which terminatcs in a throat and steam nozzle means which terminates in said convergent portion, the area of the throat being not more than one hundred times greater than the total steam nozzle throat area.

6. In a gas producer, in combination, a

fuel chamber, air and steam admission means comprising a steam-actuated jet blower for blowing air and steam into the fuel charge, said jet blower having a discharge tube rovided with a convergent portion which terminates in a throat and a plurality of steam nozzles which terminate in said con \"crgent portion, the area of the throat of the discharge tube being not more than one hundred times greater than the total steam nozzle throat area.

In witness whereof,l have hereunto set my hand this 23rd day of February, 1923.

SANFORD A. MOSS. 

